Norman, A., & Hawkey, C. J. (2011). What you need to know when you prescribe a proton pump inhibitor. Frontline Gastroenterol.
Citación estilo ChicagoNorman, A., and C J. Hawkey. "What You Need to Know When You Prescribe a Proton Pump Inhibitor." Frontline Gastroenterol 2011.
Cita MLANorman, A., and C J. Hawkey. "What You Need to Know When You Prescribe a Proton Pump Inhibitor." Frontline Gastroenterol 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.